Mathematical Terms and Definitions

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Digit

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One of the symbols 0,1,2,3,4,5,6,7,8, and 9 used to write numbers

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Percent

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A part of a whole expressed in hundredths

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Positive Rational Numbers

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The set of numbers that can be expressed as a fraction, where a and b are counting (natural) numbers

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Strip Diagram

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A linear model used to illustrate number relationships

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Mixed Fraction (Numbers)

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The sum of an integer and a proper fraction.

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Ratio

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A division comparison of two quantities with or without the same units. If the units are different they must be expressed to make the ratio meaningful.

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Numerator

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The expression written above the fraction bar in a common fraction to indicate the number of parts counted

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Denominator

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The denominator of a fraction indicates how many equal parts the whole is divided. The denominator appears beneath the fraction bar

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Equivalent

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1. A term used to describe fractions or ratios that are equal. 2. A term used to describe fractions, decimals, and percents that are equal.

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Improper Fraction

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A fraction in which the numerator is greater than or equal to the denominator.